Film reel



G. PASSAVANT.

FILM REEL.

APPLICATION man MAR. 17, 1920.

Lqgggg, Patentedsept. 19,1922,

@Wwf/@S Patented Sept. I9, w22.

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IFILM Application mcd March 17, 1920. Serial No. 366,45.

To all'wlwm t may concern:

-Be' it known that I, GERARDO PAssAvANTI, a subject of the King of Italy, and a resident of N ew York, in the county and State of New York, have invented certain new and useful Improvements in Film Reels, of which the following is a specification.

This invention relates to film reels, and has for an object to provide a reel, the 1J hub and ,bearing of vwhich are made from a single sheet of metal ,properly cut and shaped to thedesired -form.

-Another object of the invention is the construction of a sheet metal hub, the contour being such as to present one or more finger grooves in the periphery thereof, whereb the film end may be secured.

Another object of the invention is to provide such a reelwith means to facilitate its removal from the shipping can; such means consisting of two or more of the above mentioned finger grooves, theI wallsl of the grooves being corrugated or provided withv any suitable ipning means.

Another o ject` of the invention is to form in such a reel a stamped out tongue for receiving the film end, thereby obviatin the necessity of the spring member now or inarily used with the wooden hub.

Still another object of the invention is to so construct the reel frame that continuous observation of the film coil is possible, and

to provide the frame with suitable indicia whereby the time required to run off any length of Afilm may be readily ascertained, Other andfurther objects will appear as the description proceeds.

Reference is now to be had to the drawings, in which like vreference numerals des- 40 ignate corresponding parts throughout.

In the drawings: I Fig. 1 is a perspective view of the complete reel.

Fig. 2 is an enlarged erspective view of the hub detached from 't e frame.

' Figs. 3, 4 and 5 are detail views of various modifications of the finger grooves.

The reel consists of two side flan-ges or' discs 1, 1, and a hub 2. The hub is formedfrom a single strip of sheet metal which is shaped in such a manner as to provide a central bearing'3, and one or more finger grooves 4.

The walls of these grooves may have corrugations 5, therein, and be further provided with a substantially iround aperture 6, the purpose of all of which is to present suitable gripping means. Other gripping means are shown in Figs. 3, 4 and 5. In F 1g. 3 the wall is simplyv corrugated, while in- Fig. 4 the wall is smooth and has a finger aperture 6 therein. In Fig. 5 an oblong opening is provided andthe surface of the wall is broken by the corrugations 5, and by irregular protuberances 8.

Tongues 9 are .stamped from the sheet' metal strip and are lfor a purpose to be hereinafter described.y D 1- n Tabs 10 are provided on the edges of the sheet metal strip formingl the hub, for the purpose of securing the hub to the reel flanges as shown in Fig. 1,. The, tabs are passed through suitable slots in the flanges and then bent over. Others of these tabs 10 are bent "over portions of the metal strip, thereby firmly securing adjacent portions of the strip which'connect the periphery of the hub with the bearing 3.

Thev reel anges are partly cut away at 11, 11, and are also provided with radial` slots 12, 12 the pur-poses of which will later appear. The flanges are also provided with openings 13, 13, which align with the finger grooves 4.

The finger grooves 4 have a dual function, which will now be described.

One function is to quickly andv firmly secure the film end so that no slipping can'foccur during the winding operation. This is accomplished by drawing the fihn partially around the hub, then pressing, with the finger, a bight of the film into the groove, and then turning the reel, whereby the film is wrapped on itself and securely held. In formin the groove the metal is so bent that Aarelatlvely narrow opening is left for the entrance of the finger, and .from the entrance the groove widens out. This particular shape is to prevent the finger slipping from the groove during ythe film securing operation. The edge of the finger is passed through the opening and then when the finr is rotated it is substantially locked in t e groove. It will be understood that one groove, or a plurality of grooves may be provided; y

The other function of the finger grooves is to present means for removing the reel from its case. Reel cases are fpractically alwa s dented and otherwise de ormed and in t e 11o 'SBE present practice it is vusually necessary y to insert atool between the periphery of the reel and the wall of the case and pry the reel.

out, thereby. often damaging the reel or ffilm,

spring` clip isprovided for receiving the-` end of the'film.4 In the present reel a tongue 9 is stamped Vfrom the sheet metal strip form ing the hub, and the film-end ymay be secured under this tongue. It will be understood, of course, that this tongue may be used ind'ependently of the groove, i. e., the film-end .may `be secured entirely bythe tongue, the

tongue ltaking the place of the spring clip now in use. Or, the tongue and groove may be used in conjunction, in which case the film'lend is placed under the tongue, and a bight of the film pressed into the groove. Or, the groove may be used independently fof the tongue, in such case the film-end is secured in the manner which has been previously described.

I will now describe that feature of the invention by which the time for runningofi any len h of film is readily ascertained. It is high y desirable to know beforehand the 'time required for running off the film, and

to this end the flanges are provided with the previously mentioned cut away portions 11, and slots l2, which together with the open frame work of the flanges permit a determination of the amount of film on the reel. Placed on the fianges are numerals which indicate the length of film on the reel, and adjacent these numerals arey other numerals which indicate the time required to lun off that amount of film. For example, if the coil of film extends out as far as numeral 700Fig. 1, then it is evident that the film is 700 ft. long, and the adjacent numeral willl show that 10 minutes is the time required. It vwill be understood that this is a time indicator, and is not in any sense a measuring device. f'

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a film'reel, a metallic hub, said hub being formed from a strip of sheet metal,

and so shaped as to provide a finger groove in the periphery thereof. v

2. In a film reel, a metallic hub, said hub being formed from a strip `of sheet metal, and so shaped as to provide a finger groove in the periphery thereof, the edges of said finger groove projecting over said groove,

' wherebry/ the finger is substantially locked therein.

3. A film reel including side flanges and a l metallic hub, said hub` formed from a single strip of sheet metal, and so shaped as t-o 'form a finger groove in the periphery thereof, ta'bs on said hub, whereby said hub is secured to said fiangesone of said flanges provided with an aperture in substantial alignment with said fingerv groove.

4. A film reel including a metallic hub, said hub formed from a single strip of sheet metal and so shaped as to provide a finger groove in `the periphery thereof, the wall of said groove vbeing provided with a gripping surface.

5. A film reel including a metallic hub, said hub having a plurality of finger grooves therein, the walls of said grooves being provided with gripping surfaces.

6. In a film reel, a metallic hub, said hub formed from a strip of sheet metal, andso shaped as to provide a plurality of finger grooves in the periphery thereof, the walls of said grooves being corrugated to present a gripping surface.' I

7. A film reel including a metallic hub, said hub formed from a strip of sheet metal, and so shaped as to provide a plurality of finger grooves in the periphery thereof, the walls of said grooves having a finger hole therein. f

v8. A film reel including a metallic. hub, said hub formed from a single strip of sheet metal, and soshaped as to provide a finger groove in the periphery thereof, the walls of said finger groove being corrugated and havin a finger hole therein.

9. film reel including a metallic hub, said hub formed from. a strip of sheet metal, and so shaped as to provide a finger groove in the periphery thereof, and a tongue stamped from said hub adjacent said groove.

10. A film reel including a metallic hub, said hub formed from a single strip of sheet metal, and so shaped as to provide a finger groove in the periphery thereof, the wall of said finger groove being corrugated and having a finger hole therein, and a tongue stamped from said hub adjacent said finger groove.

Signed at New York, N. Y., this 10th day of March, 1920.

GERARDO PASSAVANTI. 

